Comparison of Perioperative Pregabalin and Duloxetine for Pain Management After Total Knee Arthroplasty: A Double-Blind Clinical Trial
Article Type:
Research/Original Article (دارای رتبه معتبر)

 Chronic residual pain after total knee arthroplasty (TKA) is one of the challenges of postoperative pain management. Duloxetine, by controlling neuropathic pain, and pregabalin, by affecting nociceptors, can effectively manage postoperative pain.


 This study aimed to compare the effect of perioperative oral duloxetine and pregabalin in pain management after knee arthroplasty.


 In this clinical trial, 60 patients scheduled for TKA under spinal anesthesia were randomly assigned to one of three groups A (pregabalin 75 mg), B (duloxetine 30 mg), and C (placebo). Drugs were administered 90 minutes before, 12, and 24 hours after surgery. The visual analog scale (VAS) score for pain, the first analgesic request time, postoperative analgesic consumption (i.v. paracetamol), and WOMAC score six months after surgery were recorded.


 The VAS score and analgesic consumption 48 hours after TKA in groups A and B significantly decreased compared to the placebo (P < 0.05). The first analgesic request time was longer in groups A and B than in group C (P < 0.05). While the differences were statistically significant, they are most likely not clinically significant. The WOMAC score before and six months after arthroplasty did not differ between the groups (P > 0.05).


 Perioperative oral pregabalin and duloxetine similarly reduce pain and the need for analgesic consumption within 48 hours after TKA but do not affect knee mobility status.

Anesthesiology and Pain Medicine, Volume:13 Issue: 1, Feb 2023
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